@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81dcd8ec-a8b4-4c43-8aea-4a9e6c89fad3> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81dcd8ec-a8b4-4c43-8aea-4a9e6c89fad3> .